Four Seasons 90761 HVAC Heater Core

Overview of Four Seasons Heater Core 90761

The Four Seasons Heater Core 90761 is designed specifically for Chevrolet Cavalier and Pontiac Sunfire models. This aluminum heater core provides reliable heating performance and meets or exceeds OEM standards, ensuring compatibility and durability for your vehicle's HVAC system.

• Core dimensions: 6-3/4 inches length, 7-1/2 inches width, 1 inch thickness
• Constructed from durable aluminum material
• Tube diameter: 0.75 inches (19.05 mm) for both inlet and outlet tubes
• Non-adjustable pipe positioning for direct fit
• Meets or exceeds original equipment manufacturer (OEM) specifications

Detailed Product Description

The Four Seasons Heater Core 90761 is part of the Heater Core product line, which focuses on delivering dependable heating components for vehicle HVAC systems. This aluminum heater core is engineered to provide efficient heat transfer and long-lasting performance. With core dimensions of 6.75 inches in height, 7.5 inches in width, and a depth of 1 inch, it fits precisely within the HVAC housing of Chevrolet Cavalier and Pontiac Sunfire models. The 0.75-inch diameter inlet and outlet tubes ensure proper coolant flow, maintaining optimal heating function without the need for adjustable pipe positioning.

Compatible Vehicles and Applications

This heater core is compatible with the following vehicles:

• Chevrolet Cavalier
• Pontiac Sunfire

It is designed to replace faulty or leaking heater cores in these models, restoring the vehicle’s heating system to proper working condition.

Common Issues Addressed by This Heater Core

• Insufficient cabin heat due to clogged or leaking heater core
• Coolant leaks inside the vehicle’s HVAC system
• Fogging or moisture buildup on interior windows
• Overheating caused by poor coolant circulation in the heater core
• Unpleasant odors from contaminated or damaged heater core

Installation Notes and Tips

Installation of the Four Seasons Heater Core 90761 requires removal of the vehicle’s dashboard and HVAC housing. Ensure the cooling system is properly drained before removal to prevent spills. Since this heater core does not feature adjustable pipe positioning, verify alignment with existing hoses for a direct fit. It is recommended to replace any worn or damaged hoses and clamps during installation to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Heater Core 90761 meets or exceeds OEM specifications, providing assurance of quality and fitment. Manufactured with corrosion-resistant aluminum, this heater core is built for durability and reliable performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.